TRANSPORTATION CAPACITY AND LEVEL OF SERVICE

CAPACITY:

A QUANTITATIVE MEASURE OF THE PHYSICAL ABILITY OF A PART OF THE TRANSPORTATION SYSTEM TO HANDLE AN AMOUNT OF TRAFFIC PER UNIT OF TIME, USUALLY AN HOUR

LEVEL OF SERVICE:

A QUALITATIVE MEASURE OF HOW WELL A FLOW OF TRAFFIC BEING USED SERVED BY THAT PART OF THE TRANSPORTATION SYSTEM FOR THAT UNIT OF TIME

LOS = DEMAND (VOLUME)CAPACITY

ROADWAY LEVEL OF SERVICE

(LOS)

LOS A

LOS B

LOS D

LOS C

LOS E

LOS F!

692260

0

5 2 252

14861825

3

4 5 15

#10 WEST MONTGOMERY AVE @ RESEARCH BLVD / CROFTON HILL LN

CAPACITY: 1500

CYCLE CHARACTERISTICS:SPLIT PHASE (N/S)120 SEC4 PHASES

104 1458

12

CLV: 104+12+1458=1574LOS: 1574/1500=104%; LOS = F

5 + 2 + 252 = 259259 * 0.4 = 104

15 - 3 =1212 * 1 = 12

1486 - 104 = 1382(1382 * 1) + (69 * 1.1) = 1458

14861968

3

5 2 252

4 5 1569

23670

(1825 * 0.36) = 657657 < 1382

(1968 * 0.36) = 708708 < 1382

(2260 * 0.36) = 813813 < 1382

(2367 * 0.36) = 852852 < 1382

[(4 + 5) * 1] < [(15 - 3) * 1]9 < 12